<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>alert</title>
    <link rel="stylesheet" href="css/style.css">
</head>
<body>

<!--<header>

</header>

<div class="banner">

</div>

<div id="footer">

</div>-->

<input type="button" value="红色" onclick="color('red')">
<input type="button" value="黄色" onclick="color('yellow')">
<input type="button" value="蓝色" onclick="color('blue')">

<input type="color" onchange="div(this)">

<script src="js/javescript.js"></script>
</body>
</html>